#!/usr/bin/env bash

#  Copyright 2023 The Kubernetes Authors.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

#
# Makefile with some common workflow for dev, build and test
#
export GOPROXY?=https://proxy.golang.org/

# Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
ifeq (,$(shell go env GOBIN))
GOBIN=$(shell go env GOPATH)/bin
else
GOBIN=$(shell go env GOBIN)
endif

##@ General

# The help target prints out all targets with their descriptions organized
# beneath their categories. The categories are represented by '##@' and the
# target descriptions by '##'. The awk command is responsible for reading the
# entire set of makefiles included in this invocation, looking for lines of the
# file as xyz: ## something, and then pretty-format the target and help. Then,
# if there's a line with ##@ something, that gets pretty-printed as a category.
# More info on the usage of ANSI control characters for terminal formatting:
# https://en.wikipedia.org/wiki/ANSI_escape_code#SGR_parameters
# More info on the awk command:
# http://linuxcommand.org/lc3_adv_awk.php

.PHONY: help
help: ## Display this help
	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)

##@ Build

K8S_VERSION ?= $(shell go list -m -modfile=./testdata/project-v4/go.mod -f "{{ .Version }}" k8s.io/api | awk -F'[v.]' '{printf "1.%d.%d", $$3, $$4}')

LD_FLAGS=-ldflags " \
    -X sigs.k8s.io/kubebuilder/v4/cmd.kubeBuilderVersion=$(shell git describe --tags --dirty --broken) \
    -X sigs.k8s.io/kubebuilder/v4/cmd.kubernetesVendorVersion=$(K8S_VERSION) \
    -X sigs.k8s.io/kubebuilder/v4/cmd.goos=$(shell go env GOOS) \
    -X sigs.k8s.io/kubebuilder/v4/cmd.goarch=$(shell go env GOARCH) \
    -X sigs.k8s.io/kubebuilder/v4/cmd.gitCommit=$(shell git rev-parse HEAD) \
    -X sigs.k8s.io/kubebuilder/v4/cmd.buildDate=$(shell date -u +'%Y-%m-%dT%H:%M:%SZ') \
    "
.PHONY: build
build: ## Build the project locally
	go build $(LD_FLAGS) -o bin/kubebuilder

.PHONY: install
install: build ## Build and install the binary with the current source code. Use it to test your changes locally.
	rm -f $(GOBIN)/kubebuilder
	cp ./bin/kubebuilder $(GOBIN)/kubebuilder

##@ Development

.PHONY: generate
generate: generate-testdata generate-docs update-k8s-version ## Update/generate all mock data. You should run this commands to update the mock data after your changes.
	go mod tidy
	make remove-spaces

.PHONY: remove-spaces
remove-spaces:
	@echo "Removing trailing spaces"
	@bash -c ' \
		if sed --version 2>&1 | grep -q "GNU"; then \
			find . -type f -name "*.md" -exec sed -i "s/[[:space:]]*$$//" {} + || true; \
		else \
			find . -type f -name "*.md" -exec sed -i "" "s/[[:space:]]*$$//" {} + || true; \
		fi'

.PHONY: generate-testdata
generate-testdata: ## Update/generate the testdata in $GOPATH/src/sigs.k8s.io/kubebuilder
	chmod -R +w testdata/
	rm -rf testdata/
	./test/testdata/generate.sh

.PHONY: generate-docs
generate-docs: ## Update/generate the docs
	./hack/docs/generate.sh

.PHONY: generate-charts
generate-charts: build ## Re-generate the helm chart testdata and docs samples
	rm -rf testdata/project-v4-with-plugins/dist/chart
	rm -rf docs/book/src/getting-started/testdata/project/dist/chart
	rm -rf docs/book/src/cronjob-tutorial/testdata/project/dist/chart
	rm -rf docs/book/src/multiversion-tutorial/testdata/project/dist/chart

	(cd testdata/project-v4-with-plugins && ../../bin/kubebuilder edit --plugins=helm/v1-alpha)
	(cd docs/book/src/getting-started/testdata/project && ../../../../../../bin/kubebuilder edit --plugins=helm/v1-alpha)
	(cd docs/book/src/cronjob-tutorial/testdata/project && ../../../../../../bin/kubebuilder edit --plugins=helm/v1-alpha)
	(cd docs/book/src/multiversion-tutorial/testdata/project && ../../../../../../bin/kubebuilder edit --plugins=helm/v1-alpha)

.PHONY: check-docs
check-docs: ## Run the script to ensure that the docs are updated
	./hack/docs/check.sh

.PHONY: lint
lint: golangci-lint yamllint ## Run golangci-lint linter & yamllint
	$(GOLANGCI_LINT) run

.PHONY: lint-fix
lint-fix: golangci-lint ## Run golangci-lint linter and perform fixes
	$(GOLANGCI_LINT) run --fix

.PHONY: lint-config
lint-config: golangci-lint ## Verify golangci-lint linter configuration
	$(GOLANGCI_LINT) config verify

.PHONY: yamllint
yamllint:
	@files=$$(find testdata -name '*.yaml' ! -path 'testdata/*/dist/*'); \
    	docker run --rm $$(tty -s && echo "-it" || echo) -v $(PWD):/data cytopia/yamllint:latest $$files -d "{extends: relaxed, rules: {line-length: {max: 120}}}" --no-warnings

GOLANGCI_LINT = $(shell pwd)/bin/golangci-lint
golangci-lint:
	@[ -f $(GOLANGCI_LINT) ] || { \
	GOBIN=$(shell pwd)/bin go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.2.2  ;\
	}

.PHONY: apidiff
apidiff: go-apidiff ## Run the go-apidiff to verify any API differences compared with origin/master
	$(GOBIN)/go-apidiff master --compare-imports --print-compatible --repo-path=.

.PHONY: go-apidiff
go-apidiff:
	go install github.com/joelanford/go-apidiff@v0.6.1

##@ Tests

.PHONY: test
test: test-unit test-integration test-testdata test-book test-license ## Run the unit and integration tests (used in the CI)

.PHONY: test-unit
TEST_PKGS := ./pkg/... ./test/e2e/utils/...
test-unit: ## Run the unit tests
	go test -race $(TEST_PKGS)

.PHONY: test-coverage
test-coverage: ## Run unit tests creating the output to report coverage
	- rm -rf *.out  # Remove all coverage files if exists
	go test -race -failfast -tags=integration -coverprofile=coverage-all.out -coverpkg="./pkg/cli/...,./pkg/config/...,./pkg/internal/...,./pkg/machinery/...,./pkg/model/...,./pkg/plugin/...,./pkg/plugins/golang" $(TEST_PKGS)

.PHONY: test-integration
test-integration: ## Run the integration tests
	./test/integration.sh
	./test/features.sh

.PHONY: check-testdata
check-testdata: ## Run the script to ensure that the testdata is updated
	./test/testdata/check.sh

.PHONY: test-testdata
test-testdata: ## Run the tests of the testdata directory
	./test/testdata/test.sh

.PHONY: test-e2e-local
test-e2e-local: ## Run the end-to-end tests locally
	## To keep the same kind cluster between test runs, use `SKIP_KIND_CLEANUP=1 make test-e2e-local`
	./test/e2e/local.sh

.PHONY: test-e2e-ci
test-e2e-ci: ## Run the end-to-end tests (used in the CI)`
	./test/e2e/ci.sh

.PHONY: test-book
test-book: ## Run the cronjob tutorial's unit tests to make sure we don't break it
	cd ./docs/book/src/cronjob-tutorial/testdata/project && make test
	cd ./docs/book/src/multiversion-tutorial/testdata/project && make test
	cd ./docs/book/src/getting-started/testdata/project && make test

.PHONY: test-license
test-license:  ## Run the license check
	./test/check-license.sh

.PHONY: test-external-plugin
test-external-plugin: install  ## Run tests for external plugin
	make -C docs/book/src/simple-external-plugin-tutorial/testdata/sampleexternalplugin/v1 install
	make -C docs/book/src/simple-external-plugin-tutorial/testdata/sampleexternalplugin/v1 test-plugin

.PHONY: test-spaces
test-spaces:  ## Run the trailing spaces check
	./test/check_spaces.sh

## TODO: Remove me when go/v4 plugin be removed
## Deprecated
.PHONY: test-legacy
test-legacy:  ## Run the tests to validate legacy path for webhooks
	rm -rf  ./testdata/**legacy**/
	./test/testdata/legacy-webhook-path.sh

.PHONY: install-helm
install-helm: ## Install the latest version of Helm locally
	@curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash

.PHONY: helm-lint
helm-lint: install-helm ## Lint the Helm chart in testdata
	helm lint testdata/project-v4-with-plugins/dist/chart

.PHONY: update-k8s-version
update-k8s-version: ## Update Kubernetes API version in version.go and .goreleaser.yml
	@if [ -z "$(K8S_VERSION)" ]; then echo "Error: K8S_VERSION is empty"; exit 1; fi
	@echo "Updating Kubernetes version to $(K8S_VERSION)"
	@# Update version.go
	@sed -i.bak 's/kubernetesVendorVersion = .*/kubernetesVendorVersion = "$(K8S_VERSION)"/' cmd/version.go
	@# Update .goreleaser.yml
	@sed -i.bak 's/KUBERNETES_VERSION=.*/KUBERNETES_VERSION=$(K8S_VERSION)/' build/.goreleaser.yml
	@# Clean up backup files
	@find . -name "*.bak" -type f -delete
